all we hear about is how much mitt romney is practicing practicing practicing wherever he goes. >> as if the candidates aren't under enough pressure heading into wednesday night, the latest polls shows when you factor in the margin of error, this rac e is all tied up. >>> and you can watch tomorrow's presidential debate live over on ktvu channel 2. our coverage starts at 6:00 p.m.. >>> president obama today took a break to visit the hoover dam. the president got a personal tour and learned about the dam's during the great depression. learned about the dam at his state of the union address this year as something being built during hard times. >>> during the national spotlight, 13-year-old jessica announced just a few hours ago second place winner of the broad come master's science competition in washington dc. she will take home $6,000 for her project on eye muscles and vision. santa clara brothers were two of the top 30 finalists in that competition. they studied star brightness using a digital camera and a telescope. >>> well, oote his chance for a vacation destination. his vision to